We've had an under sink Aqualiv system installed for almost three years now and I can't stand drinking water from outside my Aqualiv! I have 2.5-gallon and 5-gallon receptacles that I use to take water with me when I leave home.
Friends and family have commented on how great our water is and a few have brought empty containers to fill.
The Aqualiv has been a slam-dunk best investment. Given the affordable initial cost and low maintenance, you can't beat it!